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Last modified by Xiaoling on 2025/04/27 16:45
From version 170.7
edited by Xiaoling
on 2022/06/15 09:47
Change comment: There is no comment for this version
To version 172.2
edited by Xiaoling
on 2022/06/15 09:51
Change comment: There is no comment for this version

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206 206  
207 +
207 207  == 1.7  Precautions ==
208 208  
209 209  * At room temperature, containers of different materials, such as steel, glass, iron, ceramics, non-foamed plastics and other dense materials, have different detection blind areas and detection limit heights.
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213 213  
214 214  
216 +
215 215  == 1.8  Pin mapping and power on ==
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217 217  
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241 241  )))
242 242  
243 243  (((
244 -[[image:1654848616367-242.png]]
246 +[[image:1655257698953-697.png]]
245 245  )))
246 246  
247 247  (((
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251 251  (((
252 252  
253 253  
254 -(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS75.
256 +(% style="color:blue" %)**Step 1**(%%): Create a device in TTN with the OTAA keys from LDDS20.
255 255  )))
256 256  
257 257  (((
258 -Each LDDS75 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
260 +Each LDDS20 is shipped with a sticker with the default device keys, user can find this sticker in the box. it looks like below.
259 259  )))
260 260  
261 261  [[image:image-20220607170145-1.jpeg]]
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285 285  [[image:image-20220610161353-7.png]]
286 286  
287 287  
290 +
288 288  You can also choose to create the device manually.
289 289  
290 290   [[image:image-20220610161538-8.png]]
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297 297  
298 298  
299 299  
300 -(% style="color:blue" %)**Step 2**(%%): Power on LDDS75
303 +(% style="color:blue" %)**Step 2**(%%):  Power on LDDS20
301 301  
302 302  
303 303  Put a Jumper on JP2 to power on the device. ( The Switch must be in FLASH position).
304 304  
305 -[[image:image-20220610161724-10.png]]
308 +[[image:image-20220615095102-14.png]]
306 306  
307 307  
308 308  (((
1655257698953-697.png
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